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add dp Sourcestream #70

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add dp Sourcestream #70

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30 changes: 30 additions & 0 deletions src/LottieSharp/LottieSharp.WPF/LottieAnimationView.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,12 @@ public AnimationInfo Info

public event EventHandler OnStop;

public Stream SourceStream
{
get => (Stream)GetValue(SourceStreamProperty);
set => SetValue(SourceStreamProperty, value);
}

public string FileName
{
get => (string)GetValue(FileNameProperty);
Expand Down Expand Up @@ -119,12 +125,23 @@ public RepeatMode Repeat
public static readonly DependencyProperty RepeatProperty =
DependencyProperty.Register("Repeat", typeof(RepeatMode), typeof(LottieAnimationView), new PropertyMetadata(RepeatMode.Restart));

public static readonly DependencyProperty SourceStreamProperty =
DependencyProperty.Register("SourceStream", typeof(Stream), typeof(LottieAnimationView), new PropertyMetadata(null, SourceStreamPropertyChangedCallback));

public static readonly DependencyProperty FileNameProperty =
DependencyProperty.Register("FileName", typeof(string), typeof(LottieAnimationView), new PropertyMetadata(null, FileNamePropertyChangedCallback));

public static readonly DependencyProperty ResourcePathProperty =
DependencyProperty.Register("ResourcePath", typeof(string), typeof(LottieAnimationView), new PropertyMetadata(null, ResourcePathPropertyChangedCallback));

private static void SourceStreamPropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
if (dependencyObject is LottieAnimationView lottieAnimationView && e.NewValue is Stream stream)
{
lottieAnimationView.SetAnimationFromStream(stream);
}
}

private static void FileNamePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
if (dependencyObject is LottieAnimationView lottieAnimationView && e.NewValue is string assetName)
Expand All @@ -141,6 +158,19 @@ private static void ResourcePathPropertyChangedCallback(DependencyObject depende
}
}

private void SetAnimationFromStream(Stream stream)
{
try
{
SetAnimation(stream);
}
catch (Exception)
{
Debug.WriteLine($"Unexpected error when loading {stream}");
throw;
}
}

private void SetAnimationFromFile(string assetName)
{
try
Expand Down